Zbmini wiring

Hardware
1

I’ve just purchased a zbmini, was hoping to put it at the ceiling rose, however I only have a single twin & earth cable there.
Opened up the switch and have 3 sets of twin & earth’s
2 lives go into the COM port
1 into L1
3 neutrals into N-LOOP

How the hell do I wire in the sonoff?

2

As for the Zbmini that neutral line is mandatory. It does not work without “N”.

Either you buy a zbmini-l2 witch does not need a neutral wire or let an electrician pull a neutral line to that Zbmini.

Zbmini Wiring Diagram:

wiring-zbmini
wiring-zbmini1288×856 40 KB

Zbmini-L2 Wiring Diagram:

zbmini-l2
zbmini-l2932×510 23.7 KB

3

Hi,

Thanks, I do have a neutral wire already there, I just don’t have any switch wires at the light fitting

4

Is there any special reason why you want to install the Zbmini at the ceiling rose?

I would simply install it inside the switch box behind the switch itself. Thus L, L1 & N from/to the switch is close and whenever you have trouble with the Zbmini (i.e. freezed, needs re-pairing) you don’t have to bother with a ladder to reach that Zbmini at the ceiling rose.

5

Adam, This is what I did also. the switch itself would see, iirc, 3V or 5V, to switch on-off the zbmini.

A note, though, you would want to test how much Amps:

  1. When your ceiling fan is running
  2. During the first few seconds when your ceiling fan starts running

… because the Amp number from #2 could be many times higher than the #1. (I was told 7x, but the response time of my multimeter is not good enough to capture this.) And you would want to compare the max Amp number to the specs with your zbmini.

6

PXL_20230805_160605227~2
PXL_20230805_160605227~21285×1762 126 KB

So this is what I have behind my light switch, i’m not sure what to connect to the zbmini

7

Really? That looks quite thrown together :crazy_face:

Especially since you are unsure about the proper wiring you really should contact an electrician!

8

Using newest zbmini without neutral?
Then it’s:

Remove the wires and:
COM wire to Lin
L1 wire to Lout
N Loop = Keep it looped and cover with electrical tape

Then connect these cables:
S1 → COM
S2 → L1